John S Graham, MD - Medicare Internal Medicine in Tucson, AZ

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John S Graham, MD is a medicare enrolled "Internal Medicine" physician in Tucson, Arizona. He went to University Of Pittsburgh School Of Medicine and graduated in 1992 and has 33 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Summit Medical Group Arizona Llc and his current practice location is 1669 W Ina Rd, Tucson, Arizona. You can reach out to his office (for appointments etc.) via phone at (520) 795-6183.

John S Graham is licensed to practice in Arizona (license number 47141) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1336137538.

Contact Information

John S Graham, MD
1669 W Ina Rd,
Tucson, AZ 85704-1982
(520) 795-6183
Not Available

Map and Direction




Physician's Profile

Full NameJohn S Graham
GenderMale
SpecialityInternal Medicine
Experience33 Years
Location1669 W Ina Rd, Tucson, Arizona
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John S Graham attended and graduated from University Of Pittsburgh School Of Medicine in 1992
  NPI Data:
  • NPI Number: 1336137538
  • Provider Enumeration Date: 10/11/2005
  • Last Update Date: 05/19/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3274432869
  • Enrollment ID: I20130514000579

Medical Identifiers

Medical identifiers for John S Graham such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336137538NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 47141 (Arizona)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Summit Medical Group Arizona Llc3173872835153

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. John S Graham allows following entities to bill medicare on his behalf.
Entity NameOro Valley Medicine Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205930500
PECOS PAC ID: 3173575024
Enrollment ID: O20050218000408
Entity NameNorthwest Allied Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003833179
PECOS PAC ID: 7618972514
Enrollment ID: O20060928000110
Entity NameCity Of Hope Medical Group Of Arizona Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609026806
PECOS PAC ID: 2264593474
Enrollment ID: O20081205000793
Entity NameCogent Healthcare Of Arizona Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568758266
PECOS PAC ID: 0648441006
Enrollment ID: O20110915000843
Entity NameGreater Phoenix Collaborative Care Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750686614
PECOS PAC ID: 0941503304
Enrollment ID: O20160120000300
Entity NameSummit Medical Group Arizona Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053810622
PECOS PAC ID: 3173872835
Enrollment ID: O20180814003015
Entity NameWestern Mountain Hospital Physicians, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992278360
PECOS PAC ID: 1052659737
Enrollment ID: O20190205003639

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. John S Graham is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
John S Graham, MD
Po Box 35380,
Las Vegas, NV 89133-5380

Ph: (520) 795-6183		John S Graham, MD
1669 W Ina Rd,
Tucson, AZ 85704-1982

Ph: (520) 795-6183

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.